Abstract: Disclosed are a grass combing mechanism and a grass combing machine. The grass combing mechanism includes a mounting main body and a plurality of elastic grass combing components, each of the elastic grass combing components comprises at least one elastic comb tooth and a mounting part connected with the at least one elastic comb tooth, and the mounting part is mounted on the mounting main body. The mounting main body is provided with a fixing member corresponding to each of the elastic grass combing components, a communication gap is formed between the fixing member and the mounting main body, the mounting part is inserted into the communication gap from one side and extends out from the other side of the fixing member, and the part of the mounting part extending out from the other side of the fixing member is fixed on the mounting main body.

Abstract: The present disclosure provides a method and apparatus for cleaning a swimming pool, and an electronic device and a storage medium thereof. The method includes: controlling a swimming pool cleaning robot to move, with respect to a grid map covering the swimming pool, in a work area defined in the swimming pool to establish a cleaning map including a plurality of cleaning blocks; and controlling the swimming pool cleaning robot to traverse each of the cleaning blocks in the cleaning map to clean the swimming pool. According to the present disclosure, the cleaning regions may be accurately constructed in the map according to the work area in the swimming pool, such that the swimming pool cleaning robot cleans the swimming pool in a quick, efficient, and energy-saving fashion.

Abstract: A random orbital sanding tool includes a power motor, a driving spindle connected to the power motor, an eccentric block connected to the driving spindle, a tool holder disposed on the eccentric block, and a sanding pad connected to the tool holder and indirectly driven by the power motor. The random orbital sanding tool includes a friction ring disposed on the tool holder, the friction ring contacts a surface of the eccentric block facing the sanding pad, the friction ring stops rotation of the tool holder and the sanding pad by a friction force exerting on the surface of the eccentric block when the power motor stops operation, the friction ring includes a base part protruding into a gap between the tool holder and the eccentric block, a sleeve part diverged and extended from the base part.

Abstract: In one example, a method comprises using a first transducer, emitting a first acoustic signal representing a first code. The method further comprises using the first transducer, receiving a second acoustic signal, and converting the second acoustic signal to a sensor signal. The method further comprises computing a time-of-flight for the second acoustic signal based on a time difference between when the first transducer emits the first acoustic signal and when the first transducer receives the second acoustic signal. The method further comprises responsive to the correlation result indicating that the third acoustic signal is a reflection of a third acoustic signal emitted by a second transducer: determining a delay time between when the first transducer emits the first acoustic signal and when the second transducer emits the third acoustic signal; adjusting the time-of-flight based on the delay time; and providing a distance measurement based on the adjusted time-of-flight.

Abstract: A wall collision U-turning method for a swimming pool cleaning robot, a swimming pool edge cleaning method, and an electronic device are provided. The wall collision U-turning method includes: controlling the swimming pool cleaning robot to move toward a wall of a swimming pool based on a preset orientation until the swimming pool cleaning robot collides with the wall of the swimming pool; controlling the swimming pool cleaning robot to move backward relative to the wall of the swimming pool until a spacing distance between the swimming pool cleaning robot and the wall of the swimming pool is sufficient for the swimming pool cleaning robot to perform a U-turn motion; and controlling the swimming pool cleaning robot to perform a U-turn relative to the wall of the swimming pool until the U-turn orientation of the swimming pool cleaning robot after completion of the U-turn is opposite to the preset orientation.

Abstract: A method is provided. The method includes: obtaining a first sample dataset; inputting at least one first question text corresponding to at least one piece of first sample data into a dialog model separately to obtain at least one first answer prediction result; inputting each second question text into the dialog model to obtain a second answer prediction result output by the dialog model; inputting the second answer prediction result into a reward model to obtain a score of the second answer prediction result output by the reward model; determining a comprehensive loss based on the at least one first answer prediction result, a first answer text of each of the at least one piece of first sample data, and a score corresponding to each of at least one piece of second sample data; and adjusting at least one parameter of the dialog model based on the comprehensive loss.

Abstract: The disclosure provides an apparatus, a device, and methods for improving optical analysis of a thin layer of a sample between two plates, particularly for multiple wavelengths.

Abstract: Provided are an Internet of Things rule engine-based terminal control method and apparatus, and a device and a medium. The method comprises: parsing, by using a thing model, terminal data reported by a target terminal, so as to obtain parsed data, and storing same in a pulsar message queue, such that pluggable extension plugins and decoupling are realized; performing data enhancement on the parsed data, thereby effectively enhancing the relevance between pieces of data; processing the enhanced data by using a calcite framework and a data processing rule, so as to obtain target data; performing format conversion on the target data by means of an interface of a linkage terminal, which is determined on the basis of a linkage rule; and according to a terminal linkage rule and converted data, controlling the linkage terminal to perform linkage, thereby realizing linkage between terminals according to a rule engine.

Abstract: Disclosed are techniques for wireless communication. In an aspect, an asset tracking device receives a set of group scheduling parameters for a plurality of asset tracking devices assigned to a plurality of assets in a shipment, wherein the set of group scheduling parameters comprises a global wakeup start time and a time interval between consecutive wakeup times, wherein the shipment comprises a plurality of stops, including a starting stop, one or more intermediate stops, and an ending stop, and wherein each of the plurality of asset tracking devices has a target stop of the plurality of stops, and, at each wakeup time of at least a set of wakeup times of the consecutive wakeup times: obtains one or more positioning measurements, transmits the one or more positioning measurements, synchronizes a local clock of the asset tracking device to a global time protocol, and transitions to a sleep mode.

Abstract: Disclosed are a pyrrolopyrazole spiro compound, and the use thereof in preparing a drug for treating related diseases. The present invention specifically relates to a compound as represented by formula (I?), and a stereoisomer and a pharmaceutically acceptable salt thereof.

Abstract: The present invention provides, among other things, QMAX card based assays in different forms for various analytes, offering simpler, fast, more sensitive assaying.

Abstract: In some aspects, the techniques described herein relate to a method including: providing a graph neural network; and configuring the graph neural network to predict a competitor, the method comprising: receiving at least one dataset of nodes of supply chain companies, competitor companies, and customers and associated attached nodes' attributes; applying a first-order proximity to denote a local connection structure of some supply chain companies, competitor companies, and customers; applying a Laplacian Eigenmap to the first-order proximity to identify at least two positive pairs and at least two negative pairs; applying a pairwise ranking loss function that reduces the distance between the at least two positive pairs and increasing the distance between the at least two negative pairs; and based on an input identification of one company, ranking competitor companies of the company based on their Euclidean distances in the graph.

Abstract: A hinge mechanism includes a main shaft and a rotating module. The rotating module includes a first rotating assembly, a second rotating assembly, a first housing mounting bracket, and a second housing mounting bracket. The first rotating assembly includes a first swing arm, a first support arm, and a first connector. The first connector is separately rotatably connected to the first swing arm and the first support plate, and the first connector is capable of moving along a first track slot of the main shaft, for limitation on a movement track of the first connector. The second rotating assembly includes a second swing arm, a second support arm, and a second connector. The second connector is separately rotatably connected to the second swing arm and the second support arm, and the second connector is capable of moving along a second track slot of the main shaft.

Abstract: A control method includes obtaining sensing data output by an observation sensor of a movable platform when sensing a target object in an environment, determining a position of the target object based on the sensing data, and sending the position of the target object to another movable platform moving in the environment, or to a relay device for the relay device to send the position of the target object to the another movable platform.

Abstract: The present application relates to compounds (e.g. Formulae III, V, VII, IX, and XII) having a negative singlet-triplet gap and a positive oscillator strength. The present application also relates to use of the compounds of the present application in photocatalysis and in OLEDs as emitters and/or dopants.

Abstract: An adjustable phase shifter and a manufacturing method therefor, and an electronic device. The adjustable phase shifter includes: a first substrate and a second substrate, which are arranged opposite each other; an adjustable dielectric layer, which is arranged between the first substrate and the second substrate; a first electrode, which is located on the side of the first substrate facing the adjustable dielectric layer; and a second electrode, which is located on the side of the second substrate facing the adjustable dielectric layer, wherein an adjustable capacitor is formed in an overlap region between the first electrode and the second electrode.

Abstract: Disclosed is a wearable motion capture glove based on a flexible optical fiber, relating to the field of motion capture. The wearable motion capture glove includes a glove body, multiple motion acquisition sensing devices, and a glove packaging tool. Each motion acquisition sensing device includes a data acquisition and processing module, a circuit splint, and a flexible polymer profiled optical fiber. The data acquisition and processing module includes a motion capture data acquisition module, and a motion capture data processing module. The flexible optical fiber and the motion capture data acquisition module are firmly packaged using the circuit splint and the glove packaging tool, and then are fixed to a corresponding position of a finger joint of a wearer, such that the glove can be worn more closely to the finger joint, and data acquisition is more stable and accurate.

Abstract: A root cause failure determining method and an apparatus are provided. The method includes a first network element determines alarm information of N objects, where N is an integer greater than or equal to 2, and the first network element determines a root cause failure of the alarm information of the N objects based on an object association relationship, where the root cause failure is alarm information of M objects in the N objects, where M is a positive integer less than or equal to N. A root cause failure of a plurality of pieces of alarm information can be determined, and a service ticket can be dispatched for the root cause failure to reduce operation and maintenance costs.

Abstract: A voice activity detection device includes an audio processing circuit, a first memory, and a processor. The audio processing circuit processes an audio signal from an audio generator circuit to generate first audio data. The first memory stores the first audio data and a first program code. The processor executes the first program code to operate in a first mode, and is switched from operating in the first mode to operating in a second mode in response to an interrupt signal from the audio generator circuit, in order to determine whether the first audio data stored in the first memory includes a human voice signal, wherein power consumption of the processor operating in the first mode is lower than that in the second mode.

Abstract: A swimming pool map boundary construction and swimming pool cleaning methods, an apparatus, and an electronic device are provided. A swimming pool cleaning robot is controlled to move forward and backward relative to each preset path in a swimming pool map that covers a swimming pool within a working area defined by the swimming pool, to determine two path endpoints of each preset path, and map boundaries of the swimming pool map are constructed based on the determined two path endpoints of each preset path in the swimming pool map, so that the construction of swimming pool map boundaries is more efficient, reasonable and accurate. Moreover, the swimming pool cleaning task performed based on the swimming pool map constructed by the above method can achieve comprehensive cleaning of the swimming pool and avoid omissions.